National Dental Examining Board of Canada (NDEB) Practice Exam 2026 - Free NDEB Practice Questions and Study Guide

Question: 1 / 400

Which type of amalgam requires the least volume of mercury for the setting reaction?

Admixed

Spherical

Spherical amalgam requires the least volume of mercury for the setting reaction compared to other types of amalgam, making it the correct answer. This is due to its unique spherical shape, which allows for a more efficient use of mercury. Admixed amalgam typically requires more mercury due to its mixture of different particle sizes, while lathe-cut amalgam and binary amalgam also require more mercury for their setting reactions due to their larger surface area. This ultimately makes them less desirable options for amalgam restorations.

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Lathe-cut

Binary

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